Phantom 2 v+ no video

Does anyone have a suggestion why the gimbal light stays solid green.
Will not take pictures or video.
Went out the other day flew and took video.
Went home and tried it again and nothing but a solid green light.
Plus the camera seemd to be not moving up and down.
Seems stuck in a 45 degree andle down.
This is all new to me .
Thanks in advance.